class A {
double f(double x,double y) {
return x+y;
}
}
class B extends A {
double f (int x,int y) {
return x*y;
}
}
public class E1 {
public static void main (String args[]) {
B b=new B();
System.out.println(b.f(3,5));
System.out.println(b.f(3.0,5.0));
}
}
